c# - CRM Dynamics plugin code issue 2015 -

i'm trying create plugin microsoft crm dynamics 2015 (version 7.0.2), it's not working. plugin run when case created , attemp recover contract information account.

i have following code, it's not working(contract information not saved on case/incident).

edit

i update code, fails, doesn't give clear error on system job or when debug using plugin registration tool.

system job error message: system.servicemodel.quotaexceededexception: microsoft dynamics crm has experienced error. reference number administrators or support: #1c10449a

debuging visual studio , plugin registration tool goes until tries call update method, says incident not exist, since syncrhonous plugin incident not created(only way log able debug found).

public class casecontractfill : iplugin {     contract checkforcontract(guid accountid, iorganizationservice service)     {          queryexpression accountcontractquery = new queryexpression         {             entityname = contract.entitylogicalname,             columnset = new columnset(true),             criteria = new filterexpression             {                 conditions =                  {                     new conditionexpression                      {                         attributename = "accountid",                         operator = conditionoperator.equal,                         values = { accountid }                     }                 }             }         };          datacollection<entity> accountcontracts = service.retrievemultiple(accountcontractquery).entities;          //check if account has contract , return         if (accountcontracts.count > 0)         {             return (contract)accountcontracts[0];         }          //retrieves account         account account = (account)service.retrieve(account.entitylogicalname, accountid, new columnset(true));          //check if account has parent , call method again parent         if (account.parentaccountid != null)         {             checkforcontract(account.parentaccountid.id, service);         }          //if no contract and/or no parent returns null         return null;      }      contractdetail checkforcontractline(guid contractid, iorganizationservice service)     {         queryexpression accountcontractquery = new queryexpression         {             entityname = contractdetail.entitylogicalname,             columnset = new columnset(true),             criteria = new filterexpression             {                 conditions =                  {                     new conditionexpression                      {                         attributename = "contractid",                         operator = conditionoperator.equal,                         values = { contractid }                     }                 }             }         };          datacollection<entity> contractlines = service.retrievemultiple(accountcontractquery).entities;          return (contractdetail)contractlines[0];     }      public void execute(iserviceprovider serviceprovider)     {         itracingservice tracer = (itracingservice)serviceprovider.getservice(typeof(itracingservice));         ipluginexecutioncontext context = (ipluginexecutioncontext)serviceprovider.getservice(typeof(ipluginexecutioncontext));         iorganizationservicefactory factory = (iorganizationservicefactory)serviceprovider.getservice(typeof(iorganizationservicefactory));         iorganizationservice service = factory.createorganizationservice(context.userid);          try         {             entity entity = (entity)context.inputparameters["target"];                             incident incident = (incident)entity.toentity<incident>();              contract contract = checkforcontract(incident.customerid.id, service);              if (contract != null)             {                 incident.contractid = contract.toentityreference();                  contractdetail contractline = checkforcontractline(contract.id, service);                 incident.contractdetailid = contractline.toentityreference();                  service.update(incident);             }         }         catch (exception e)         {             throw new invalidpluginexecutionexception(e.message);         }     } } 

"contractid" being incorrectly assigned.

if (contract != null) {   incident.contractid = contract.toentityreference();   service.update(incident); }